Kungani iTungsten Ibaluleke Kangaka Emisebenzini Yokubhoboza Uwoyela Negesi?

Ukubaluleka kwe-tungsten (ikakhulukazi i-tungsten carbide) ekubholeni uphethiloli kungafaniswa nokuthi“amazinyo ezimboni”yokusebenza. Ihlinzeka ngamathuluzi okubhoboza kanyeikhono eliqinile lokuqhekeka idwala ngokuqhubekayo, ngempumelelo, nangokuthembekile ngenkathi bezivikela ngaphansi kwezimo ezimbi kakhulu zejiyolojiLokhuinhlanganisela ephelele yobulukhuni, ukuqina, ukumelana nokushisa okuphezulu, kanye nokumelana nokugugulekakwenza kube yinto ebalulekile ngokwecebo futhi engenakufakwa esikhundleni njengamanje. Yingakho futhi ukuguquguquka kwamanani e-tungsten kuthinta ngqo yonke imboni yokumba uphethiloli.

Ngezansi ukuhlaziywa okuningiliziwe kwezizathu eziyinhloko:

I. Izinto Ezibalulekile Zokunqoba Izimo Zokusebenza Ezinzima Kakhulu

Ukumba uphethiloli—ikakhulukazi emithonjeni ejulile, emithonjeni ejulile kakhulu, emithonjeni evundlile yegesi ye-shale, kanye nokumba ogwini lolwandle—kubhekene nezinselele ezintathu ezinkulu “ezinzima kakhulu”:

1. Ukucindezela Okukhulu Nokushisa: Ekujuleni kwamakhilomitha amaningana, amazinga okushisa angadlula ama-200°C, kanti ukucindezeleka kufinyelela amakhulu emimoya.
2. Ukuguguleka Okukhulu: Izingcezu zokubhoboza kumele ziphule ukwakheka okuqinile nokurhabaxa (isb., i-granite, i-flint, i-quartz sandstone).
3. Ukugqwala Okukhulu: Uketshezi lokubhoboza lungaqukatha amakhemikhali aqothulayo, usawoti, kanye negesi ye-hydrogen sulfide.

Isixazululo seTungsten: I-Tungsten Carbide Hard Alloy

• Ukuqina Okungalingani Nokumelana Nokugqokwa: I-tungsten carbide ingeyesibili kuphela ngemva kwedayimane ngokuqina kodwa inikeza ukumelana nokushayisana okuphezulu kakhulu nokuqina uma kuqhathaniswa nedayimane. Lokhu kuyivumela ukuthi isebenze “njengamazinyo ezimboni,” iqhubeka nokusika idwala ngaphansi kokujikeleza okusheshayo nomthwalo osindayo, isikhathi senkonzo siphindwe kaningi kunensimbi evamile.
• Ukuqina Okushisayo Okuhle Kakhulu: Igcina ubulukhuni obuphezulu ngisho noma amazinga okushisa aphezulu (kufika ku-~1000°C), ngokungafani nezinsimbi eziningi ezithamba ngokushesha futhi zihluleke.
• Ukuzinza Okuhle Kwamakhemikhali: Iyamelana nokugqwala okuvela kuketshezi lokubhoboza kanye noketshezi olungaphansi komhlaba.

II. Izicelo Eziyinhloko Ezinhlelweni Zokubhoboza

I-Tungsten (ngokuyinhloko ngesimo se-tungsten carbide kanye ne-tungsten alloys) iyingxenye ebalulekile yezici eziningi ezibalulekile zemisebenzi yokubhoboza:

1. “Amazinyo” kanye Nemiphetho Emincane Yezingcezu Zokubhoboza:

• Amabhithi ekhoni: “Amazinyo” afakwe ku-cone ngayinye enziwe kakhulu nge-tungsten carbide. Angumugqa ophambili edwaleni elithintayo neliqhekekayo.
• Amabhithi Okusika Angaguquki: Nakuba ama-bits e-PDC (Polycrystalline Diamond Compact) esebenzisa izisiki zedayimane ekugundeni indawo enkulu,izihlikihli zokulinganisa, amazinyo esithende, kanye nezifakelo zokuqinisa ezindaweni ezibucayingokuvamile bathembele ku-tungsten carbide ukuvimbela ukuguguleka emzimbeni we-bit.
• Amabhithi Akhethekile: “Ama-Diamond Impregnated Bits” asetshenziswa ezinhlotsheni ezinzima kakhulu aqukethe inani elikhulu lezinhlayiya ze-tungsten carbide ngaphakathi kwe-matrix, esebenza njengezinto ezihudulayo kanye nesakhiwo sokusekela.

1. Izingxenye Ezingagugi Zamathuluzi Abalulekile:

• Amathuluzi Okudonsa: Izindawo zangaphandle zamathuluzi e-MWD/LWD, iziqinisi, kanye nama-reamers zivame ukuba nzima ngezinhlayiya ze-tungsten carbide noma zifakwe ama-tungsten carbide inserts ukuze zimelane nokuguguleka okukhulu okuvela embotsheni yomthombo.
• Izingxenye Zentambo Yokubhoboza: Amabhande okugqoka asemajoyintini amathuluzi epayipi lokubhoboza kanye nepayipi lokubhoboza elisindayo ambozwe nge-tungsten carbide ukuze kuncishiswe kakhulu ukungqubuzana kanye nokuguga ekhasejini, kuvikelwe amashubhu abizayo.

1. Izinto Zokulinganisa Isisindo Esiphezulu:

• Ama-alloy e-Tungsten-nickel-ironzisetshenziselwa izisindo kumathuluzi okubhala ngokunemba njenge-MWD/LWD.ukuminyana okuphezulu (≈18 g/cm³)ivumela ubuningi obukhulu ezindaweni ezivalekile, iqinisa ngempumelelo amathuluzi futhi iqinisekise ukutholakala kwedatha okunembile.

III. Izinzuzo Eziqondile—Kungani “Zingenakuthathelwa Indawo”

1. Ukusebenza Kahle Kokubhoboza Okuthuthukisiwe: Izingxenye ze-tungsten eziqinile nezimelana nokuguguleka ziholelaamazinga aphezulu okungena (ROP)futhii-footage ende ngokugijima kwe-bit, kunciphisa ngqo isikhathi sokwakha umthombo.
2. Ukuphepha Nokuthembeka Kokusebenza Okuqinisekisiwe: Ukwehluleka okungazelelwe kwengxenye noma ithuluzi elingaphansi kwamanzi ayizinkulungwane zamamitha kungabangela imisebenzi yokudoba ebizayo noma ngisho nokulahlekelwa umthombo. Ukuthembeka okungavamile kwezingxenye ze-tungsten kuyisihluthulelo sokuqhubeka kokusebenza.
3. Izindleko Eziphansi EzijwayelekileNakuba izinto ze-tungsten zibiza kakhulu, izinzuzo—isikhathi esincishisiwe sokukhubeka ngenxa yokushintsha kwe-bit, amazinga aphansi okuhluleka, kanye ne-total footage ephezulu yokubhoboza—kuholela ezindleko eziphansi kakhulu ngemitha kulo lonke umjikelezo wokuphila.
4. Ivumela Ukusebenza Okukhulu: Ngaphandle kwezinsimbi eziqinile ezisekelwe ku-tungsten, ukumba imithombo eminingi yanamuhla engaphezu kwamamitha angu-5,000 ukujula (imithombo ejulile/ejulile kakhulu) kanye ne-geometri yemithombo eyinkimbinkimbi bekungeke kwenzeke ngokobuchwepheshe noma ngokwezomnotho.